NFS: Fix a memory leak in nfs_readdir

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We need to ensure that the entries in the nfs_cache_array get cleared
when the page is removed from the page cache. To do so, we use the
freepage address_space operation.

Change nfs_readdir_clear_array to use kmap_atomic(), so that the
function can be safely called from all contexts.

Finally, modify the cache_page_release helper to call
nfs_readdir_clear_array directly, when dealing with an anonymous
page from 'uncached_readdir'.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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This commit is contained in:

Trond Myklebust 2010-12-01 14:17:06 -05:00

parent 6072d13c42

commit 11de3b11e0

3 changed files with 11 additions and 9 deletions

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18

fs/nfs/dir.c

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1

fs/nfs/inode.c

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1

include/linux/nfs_fs.h

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